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Confidence Intervals and Sample Size to Compare the Predictive Values of Two Diagnostic Tests
Mathematics, 2021 A binary diagnostic test is a medical test that is applied to an individual in order to determine the presence or the absence of a certain disease and whose result can be positive or negative.
José Antonio Roldán-Nofuentes +1 more
doaj +1 more source
Differences in negative predictive value of prostate MRI based in men with suspected or known cancer [PDF]
Radiol Bras, 2019 Armonde A. Baghdanian +5 more
openalex +3 more sources
BMC Musculoskeletal Disorders, 2021 Background An administrative database covering a whole population such as the national database in Japan may be used to estimate the nationwide prevalence of diseases including rheumatoid arthritis (RA) when a well-validated definition of the disease is ...
Kiyoshi Kubota +5 more
doaj +1 more source
False negatives of screening in large-scale population
Shanghai yufang yixue, 2022 ObjectiveTo explore the changing trend of negative predictive value and number of false negatives in screening tests under the condition of low infection rate of infectious diseases.MethodsAssuming that the population is 20 million， to calculate the ...
XU Ning +4 more
doaj +1 more source
Clinical Impact of 18F-FDG PET/CT on the Management of Gynecologic Cancers: One Center Experience [PDF]
Asia Oceania Journal of Nuclear Medicine and Biology, 2019 Objective(s): We aim to investigate the clinical impact of 18F-FDG PET/CT in managing patients with gynecological malignancies and pelvic or extrapelvic lymph nodes that are of equivocal significance on conventional imaging.Methods: We retrospectively ...
Akram Al-ibraheem +4 more
doaj +1 more source
Identifying incident cancer cases in dispensing claims
International Journal of Population Data Science, 2020 Introduction Dispensing claims are used commonly as proxy measures in pharmacoepidemiological studies; however, their validity is often untested. Objectives To assess the performance of a proxy for identifying cancer cases based on the dispensing of ...
Benjamin Daniels +2 more
doaj +1 more source
Active metamaterials with negative static electric susceptibility [PDF]
Adv. Mater. 32, 1904863 (2020), 2017 Well-established textbook arguments suggest that static electric susceptibility must be positive in "all bodies" [1]. However, it has been pointed out that media that are not in thermodynamic equilibrium are not necessarily subject to this restriction; negative static electric susceptibility has been predicted theoretically in systems with inverted ...
arxiv +1 more source
Rethinking InfoNCE: How Many Negative Samples Do You Need? [PDF]
arXiv, 2021 InfoNCE loss is a widely used loss function for contrastive model training. It aims to estimate the mutual information between a pair of variables by discriminating between each positive pair and its associated $K$ negative pairs. It is proved that when the sample labels are clean, the lower bound of mutual information estimation is tighter when more ...
arxiv
BJU International, 2016 To evaluate the cancer detection rates for men undergoing 12‐core systematic prostate biopsy with negative prebiopsy multiparametric magnetic resonance imaging (mpMRI) results.
James S. Wysock +8 more
semanticscholar +1 more source
SAGE Open Medicine, 2021 Objectives: Concern for late detection of bacterial pathogens is a barrier to early de-escalation efforts. The purpose of this study was to assess blood, respiratory and urine culture results at 72 h to test the hypothesis that early negative culture ...
Lindsey A Sellers +5 more
doaj +1 more source